CN104216210B

CN104216210B - Light source system and related projection system

Info

Publication number: CN104216210B
Application number: CN201410391971.3A
Authority: CN
Inventors: 胡飞; 李屹; 曹亮亮; 杨毅
Original assignee: Shenzhen Yili Ruiguang Technology Development Co Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; Shenzhen Appotronics Technology Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2017-01-25
Anticipated expiration: 2032-09-28
Also published as: CN104216210A

Abstract

An embodiment of the invention discloses a light source system. The light source system comprises a lighting device, a light division system, a first spatial light modulator and a second spatial light modulator; the lighting device is used for emitting first light and second light in order; the light division system is used for dividing the first light from the lighting device into first-range wavelength light and second-range wavelength light which are emitted along a first light passage and a second light passage respectively; the light division system is further used for emitting at least part of the second light from the lighting device along the first light passage; the first spatial light modulator is used for modulating the light which is emitted by the light division system along the first light passage; the second spatial light modulator is used for modulating at least part of the light which is emitted by the light division system along the second light passage. The light source system is high in lighting efficiency and low in cost.

Description

Light-source system and relevant projecting system

The Application No. 201210370655.9 that the application submits in 2012 for applicant for 09 month on the 28th, denomination of invention Divisional application for " light-source system and relevant projecting system ".

Technical field

The present invention relates to illumination and display technology field, more particularly to a kind of light-source system and its relevant projecting system.

Background technology

In existing one chip dmd (digital micromirror device, digital micromirror elements) system, Duo Geji Coloured light alternately enters dmd (dmd) and is modulated by it, modulates the monochromatic light image obtaining quick alternately switching on screen, and then The monochromatic light image blend of each sequential is formed coloured image by the persistence of vision effect using human eye together.And prior art In, typically adopt r (red, HONGGUANG), g (green, green glow), b (blue, blue light) three primary colours light to be modulated.The most frequently used The way obtaining three primary colours sequential light is to adopt exciting light to excite the different segmentations on colour wheel successively with outgoing different colours successively Light.In the structure shown here, excitation source is swashed using blue led (light emitting diode, light emitting diode) or blueness Light.Three subregions are had on colour wheel, a subregion is provided with transparent area, for transmission blue light；Another two subregion is respectively arranged with Green light fluorescent powder and red light fluorescent powder, are respectively used to absorb exciting light and produce green Stimulated Light and red Stimulated Light.

But, in this phosphor source, red fluorescence powder is the one of the working life of limiting light source and luminous efficiency Individual bottleneck.The light conversion efficiency of red light fluorescent powder is not high, and wherein the energy of loss is all converted to heat, leads to the temperature of fluorescent material Rapid increase, can affect its luminous efficiency and service life in turn again, form vicious cycle.

Content of the invention

The invention mainly solves the technical problem of providing a kind of light-source system having luminous efficiency and lower cost concurrently.

The embodiment of the present invention provides a kind of light-source system, comprising:

Light-emitting device, for sequentially outgoing first light and the second light；

Beam splitting system, the first light for selfluminous device in future is divided into going out along the first optical channel and the second optical channel respectively The the first range of wavelength light penetrated and the second range of wavelength light, are additionally operable at least part of light edge of the second light of selfluminous device in future First optical channel outgoing；

First spatial light modulator, for being modulated along the light of the first optical channel outgoing to described beam splitting system；

Second space photomodulator, for adjusting along at least part of light of the second optical channel outgoing to described beam splitting system System.

The embodiment of the present invention also provides a kind of optical projection system, including above-mentioned light-source system.

Compared with prior art, the present invention includes following beneficial effect:

First smooth light splitting is become the first range of wavelength light and the second range of wavelength light by the present invention, and this two range of wavelength Light and at least part of light sequential outgoing of the second light, so, certain period outgoing two light beams, another period outgoing is a branch of Light beam, so that can be modulated to three light beams using two spaces photomodulator；And the present invention can adopt to be had The Stimulated Light light splitting that the material for transformation of wave length of high light conversion efficiency produces becomes another two to have the wavelength of relatively low light conversion efficiency The color of light of transition material, to improve the efficiency of light source.

Brief description

Fig. 1 is the yellow spectrum that yellow fluorescent powder produces.

Fig. 2 is the schematic diagram of an embodiment of the light-source system of the present invention；

Fig. 3 a is a kind of embodiment of the sequential chart of wavelength conversion layer 203 emergent light；

Fig. 3 b and Fig. 3 c is respectively a kind of embodiment of the modulation time diagram to different color light for the dmd 211 and dmd 213；

Fig. 4 is another embodiment of the modulation time diagram to HONGGUANG for the dmd 213；

Fig. 5 is the schematic diagram of another embodiment of the light-source system of the present invention；

Fig. 6 is the schematic diagram of another embodiment of the light-source system of the present invention；

Fig. 7 is the schematic diagram of another embodiment of the light-source system of the present invention；

Fig. 8 is the front view of an embodiment of colour wheel 703 in Fig. 7；

Fig. 9 is the front view of another embodiment of the first light-dividing device 609 in Fig. 6；

Figure 10 is the schematic diagram of another embodiment of the light-source system of the present invention；

Figure 11 is a kind of schematic diagram of the light-source structure being fixedly connected wavelength conversion layer with the first light-dividing device；

Figure 12 is the schematic diagram of another embodiment of the light-source system of the present invention；

Figure 13 a is the sequential chart of wavelength conversion layer 1203 outgoing blue light and gold-tinted；

Figure 13 b and Figure 13 c is respectively the modulation time diagram to different color light for dmd1211 and dmd1213；

Figure 14 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention；

Figure 15 is the structural representation of the illuminating source group in the embodiment shown in Figure 14；

Figure 16 is the schematic diagram of the another embodiment of the light-source system of the present invention；

Figure 17 a is the color sequential chart of the light-source system emergent light shown in Figure 16；

Figure 17 b and Figure 17 c is respectively the modulation time diagram to different color light for dmd1611 and dmd1613；

Figure 18 is the schematic diagram of the another embodiment of the light-source system of the present invention；

Figure 19 is an embodiment of the front view of the filtering apparatus in the light-source system shown in Figure 18；

Figure 20 is the modulation timing figure with two dmd for the light-source system of two light sources of the light-source system shown in Figure 18；

Figure 21 is another embodiment of the front view of the filtering apparatus in the light-source system shown in Figure 18；

Figure 22 is the schematic diagram of the another embodiment of the light-source system of the present invention；

Figure 23 is the front view of the filtering apparatus in the light-source system shown in Figure 22；

Figure 24 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention；

Figure 25 is the modulation timing figure with two dmd for the light-source system of three light sources of the light-source system shown in Figure 24；

Figure 26 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention；

Figure 27 is the modulation timing figure with two dmd for the light-source system of four light sources of the light-source system shown in Figure 26；

Figure 28 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention；

Figure 29 is an embodiment of the front view of the wavelength conversion layer in the light-source system shown in Figure 28；

Figure 30 is a kind of work schedule of the light-source system shown in Figure 28；

Figure 31 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention；

Figure 32 is the structural representation of an embodiment of the light-source system of the present invention；

Figure 33 is the structural representation of another embodiment of the light-source system of the present invention.

Specific embodiment

The invention thinking of the present invention includes: by light-emitting device sequentially outgoing the first light and the second light, by beam splitting system First light is divided into the two bundle different wavelength range light along different propagated, so, in the difference outgoing two of a certain period not Co-wavelength scope light is adjusted to two spaces photomodulator, at least part of light of another period outgoing second light to this two spaces light One of device processed, so that with two spaces photomodulator, three beams can not shared the same light be modulated；At the same time it can also by inciting somebody to action The be stimulated yellow Stimulated Light light splitting of generation of yellow fluorescent powder with higher light conversion efficiency becomes HONGGUANG and green glow, thus keeping away Exempt to produce HONGGUANG using the relatively low red light fluorescent powder of light conversion efficiency, to improve the efficiency of light-source system.

As shown in figure 1, Fig. 1 is a specific example of the yellow spectrum that yellow fluorescent powder produces.As can be seen from Figure, fluorescence The spectrum of the gold-tinted that powder produces is wider, covers the spectrum of green glow and the spectrum of HONGGUANG.Therefore, gold-tinted light splitting can be become green glow And HONGGUANG.For ease of description, the spectrum of below-mentioned gold-tinted all covers red color light component and green color components, and gold-tinted can be through filter Electro-optical device light splitting becomes HONGGUANG and green glow along different propagated.

With embodiment, the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

Embodiment one

Refer to Fig. 2, Fig. 2 is the schematic diagram of an embodiment of the light-source system of the present invention.The light source system of this embodiment System 200 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 211 and second space photomodulator 213.

Light-emitting device 1 includes excitation source 201, wavelength conversion layer 203 and the first driving means for producing exciting light 205.Wavelength conversion layer 203 includes the first subregion and the second subregion, and this first subregion is provided with first wave length transition material, uses In absorbing exciting light outgoing first light；It is provided with transparent area, for transmission exciting light, this exciting light is the on this second subregion Two light.In the present embodiment, excitation source 201 is used for producing blue excitation light.Excitation source 201 is preferably LASER Light Source, Can be led or other solid state light emitters.It is provided with yellow fluorescent powder, for inhaling on the first subregion on wavelength conversion layer 203 Receive exciting light and produce yellow Stimulated Light, this is the first light；It is transparent area on second subregion, for transmission blue light, this is second Light.Wavelength conversion layer 203 is in the form of annular discs, and the different subregions on wavelength conversion layer are circumferentially distributed along this this disk.

First driving means 205 are used for driving wavelength conversion layer 203 so that exciting light is formed on wavelength conversion layer 203 Hot spot act on wavelength conversion layer 203 by predefined paths, so that this exciting light is sequentially radiated at the first subregion and the second subregion On, so that the first light and the sequentially outgoing of the second light.In the present embodiment, first driving means 205 are motor, for driving wavelength Conversion layer 203 periodic rotary.

The first light that beam splitting system 2 is used for selfluminous device in future 1 is divided into along the first optical channel and the second optical channel outgoing The first range of wavelength light and the second range of wavelength light；It is additionally operable at least part of light edge of the second light of selfluminous device in future 1 First optical channel outgoing.First spatial light modulator 211 is used for beam splitting system 2 is adjusted along the light of the first optical channel outgoing System.Second space photomodulator 213 is used for beam splitting system 2 is modulated along at least part of light of the second optical channel outgoing.Warp The light of the first spatial light modulator 211 and second space photomodulator 213 modulation carries out closing light and enters view field.

In the present embodiment, gold-tinted light splitting is become green glow by beam splitting system 2, i.e. the first range of wavelength light, and HONGGUANG, and that is, second Range of wavelength light.Clear for describing, in following citing, when the first smooth gold-tinted light splitting becomes green glow and HONGGUANG, the wherein first scope Wavelength light and the second range of wavelength light are not necessarily green glow and HONGGUANG respectively, this two kinds of scope light simply relative concept, first Range of wavelength light and the second range of wavelength light can also be HONGGUANG and green glow respectively.

First spatial light modulator 211 is used for the blue light of sequential and green glow are modulated, second space photomodulator 213 For being modulated to HONGGUANG.Because the conversion efficiency of yellow fluorescent powder is higher, and blue light is directly produced by luminescent device, therefore Yellow fluorescent powder is excited to produce three primary colours and make the efficiency of light source higher with blue light.

For concrete example, beam splitting system 2 includes tir (total internal reflection, total internal reflection) prism 207 and 209 combination.This two prisms are triangulo column, and the side of the wherein first prism 207 is 207a, 207b and 207c, the The side of two prisms 209 is 209a, 209b and 209c；The side 207c of the wherein first prism 207 and the side of the second prism 209 209c connects.

The Stimulated Light 23 of wavelength conversion layer 203 outgoing enters this prism from the side 207b of the first prism 207, and in side It is totally reflected on 207a, after the 207c transmission of side, the side 209c from the second prism 209 is transmitted into the second prism 209 simultaneously Reach on the 209a of side.Side 209a be coated surface, be coated with filter coating thereon, this filter coating transmission HONGGUANG, and reflect blue light and Green glow.The blue light that sequential produces and green glow are totally reflected after coated surface 209a reflection on the 209c of side again, and in side The upper transmission of 209b is to enter the first spatial light modulator 211 from the first optical channel.Blue light after modulated and green glow are with another angle Degree incident side 209b transmission, and be totally reflected on the 209c of side, then from side after coated surface 209a reflection 209c transmission is simultaneously gone out from the first prism 207 transmission.And HONGGUANG enters second from the second optical channel after coated surface 209a transmission Spatial light modulator 213.HONGGUANG after modulated successively from the second prism 209 and the first prism 207 transmission, after being modulated Green glow is combined into light beam.

Spatial light modulator can be the other kinds of spatial light modulator such as dmd or liquid crystal.Say for convenience Bright, in the examples below all using dmd as an example.

As shown in Figure 3 a, Fig. 3 a is a kind of embodiment of the sequential chart of wavelength conversion layer 203 emergent light.In the present embodiment In, the first subregion on wavelength conversion layer 203 accounts for 270 degree, and the second subregion accounts for 90 degree.The second subregion from wavelength conversion layer 203 The input path initially entering exciting light starts, within the time in cycle t that wavelength conversion layer 203 rotates, the work of light-source system Make process as follows.In front 0.25t, wavelength conversion layer 203 outgoing blue light, in rear 0.75t, wavelength conversion layer 203 outgoing is yellow Light.Accordingly, in front 0.25t, dmd 211 is used for modulating blue light, and dmd 213 is not used for modulating light beam.Dmd in 0.75t afterwards 211 are used for modulating green glow, and dmd 213 is used for modulating HONGGUANG.As shown in Fig. 3 b and Fig. 3 c, Fig. 3 b and Fig. 3 c is respectively dmd 211 A kind of embodiment with the modulation time diagram to different color light for the dmd 213.In this case, in each cycle t HONGGUANG and Green glow is all entirely utilized so that the utilization of light source is the most efficient.However, this may not be practical situation, because this may cause this The chromaticity coordinates of the white light that three primary colours light mixes and predetermined chromaticity coordinates have deviation.In practice, can be by using this Two dmd to control the chromaticity coordinates of white light to make up to satisfaction the length modulating the time of different colours light.For example, in this reality Apply in example, if HONGGUANG excessively leads to the chromaticity coordinates of white light partially red, the modulation time of dmd 213 can be controlled to shorten, make Obtaining the HONGGUANG in certain period of time is invalid light.As shown in figure 4, Fig. 4 to be dmd 213 another to the modulation time diagram of HONGGUANG Plant embodiment.In the diagram, in each cycle t, the hindfoot portion of HONGGUANG is rejected.It is also possible to by HONGGUANG in practice Leading portion give up, or one end of centre or several sections are given up, and this all will be appreciated that.

In addition, the ratio shared by above first subregion and the second subregion is to illustrate, it is not limiting as its actual ratio.In reality During border uses, the proportion of the first subregion and the second subregion can be determined according to actual needs.

In the present embodiment, light-emitting device sequentially outgoing the first light and the second light, and by beam splitting system, the first light is divided Become the two bundle different wavelength range light along different propagated, so, in two different wavelength range of outgoing respectively of a certain period Light to two spaces photomodulator, at least part of light of another period outgoing second light to this two spaces photomodulator one Individual, so that with two spaces photomodulator, three beams can not shared the same light being modulated.

In practice, the optical filtering curve on the coated surface 209a in tir prism 209 in beam splitting system 2 can also It is transmission green glow and blue light, and reflects HONGGUANG, in this case, dmd 211 is used for modulating HONGGUANG, and dmd 213 is used for modulating Green glow and blue light；Or the optical filtering curve on coated surface 209a is changed to transmission green glow, and reflect HONGGUANG and blue light；Then dmd 211 For modulating HONGGUANG and blue light, dmd 213 is used for modulating green glow.Coated surface can be designed according to actual needs in practice The optical filtering curve of 209a.

Light path in this two pieces of tir prisms for the above Stimulated Light only row illustrated example for convenience of description, is not intended to limit tir Other usages of prism.

In the above embodiments, to realize the light splitting of green color components and red color light component in gold-tinted using two pieces of prisms simultaneously And the closing light of the light beam after two spaces light modulator modulates.In practice, it is possible to use light splitting optical filter comes Gold-tinted is carried out with light splitting, and the light beam after the light path rear end of two dmd is modulated to it using optical filter carries out closing light.

Embodiment two

As shown in figure 5, Fig. 5 is the schematic diagram of another embodiment of the light-source system of the present invention.In the present embodiment, light source System 500 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 511 and second space photomodulator 513.Luminous Device 1 includes excitation source 501, wavelength conversion layer 503 and first driving means 505.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 2:

Beam splitting system 2 includes optical filter 509 and reflecting mirror 507.Optical filter 509 is used for receiving wavelength conversion layer 503 sequentially Green glow 53a in the gold-tinted 53 and blue light 55, and transmission blue light 55 and gold-tinted 53 of outgoing from the first optical channel outgoing to dmd511, And reflect HONGGUANG 53b in gold-tinted 53 to reflecting mirror 507, reflecting mirror 507 reflection HONGGUANG 53b from the second optical channel outgoing to dmd513.

Preferably, light-source system 500 also includes the optical filter being respectively arranged on the emitting light path of dmd511 and dmd513 515 with reflecting mirror 517.Reflecting mirror 517 is used for the blue light of the sequential after modulating through dmd511 and green reflection to optical filter 515.Optical filter 515 is used for reflecting the blue light being derived from reflecting mirror 517 and green glow and transmission is derived from the HONGGUANG of dmd513, by dmd The light beam of 511 and dmd 513 modulation outgoing is combined into light beam.It is understood that in other embodiments, can be by setting The rising angle of dmd 511 and dmd 513 is so that the two-beam of dmd511 and dmd513 outgoing respectively converges as light beam；This Outward, it is also possible to not need to converge as light beam by the two-beam of dmd511 and dmd513 outgoing respectively in some application scenarios, Therefore reflecting mirror 517 and optical filter 515 are dispensed with.

Embodiment three

Refer to Fig. 6, Fig. 6 is the schematic diagram of another embodiment of the light-source system of the present invention.In the present embodiment, light source System 600 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 611 and second space photomodulator 613.Luminous Device 1 includes excitation source 601, wavelength conversion layer 603 and first driving means 605.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 5:

Beam splitting system 2 includes the first light-dividing device 609, the second driving means 607 and first control device (not shown).For Improve the utilization rate of the emergent light of light-emitting device 1, light-source system 600 also includes being arranged between light-emitting device 1 and beam splitting system 2 Light path on collecting lens 615, for collecting gold-tinted 63 and the blue light 65 of light-emitting device sequentially outgoing, and in the light that will collect Continue to the first light-dividing device 609.First light-dividing device 609 is in the form of annular discs, and is circumferentially divided into the first section and the second section.The Two driving means 607 are used for driving the first light-dividing device to rotate so that the first section and the second section are sequentially in light-emitting device 1 Emitting light path on.First control device controls the rotation of first driving means 605 and the second driving means 607 so that first Light-dividing device 609 and wavelength conversion layer 603 synchronous axial system, so that the first section is located at the first light, the i.e. emitting light path of gold-tinted 63 On, the second section is located at the second light, that is, on the emitting light path of blue light 65.

The first section on first light-dividing device 609 be used for transmission gold-tinted 63 in green glow from the second optical channel outgoing to Dmd 613 simultaneously reflects HONGGUANG in gold-tinted 63 from the first optical channel outgoing to dmd 611, the second section be used for reflecting blue light 65 from First optical channel outgoing is to dmd 611.Certainly, the first section reflection HONGGUANG transmission green glow can also be made in practice； Or, the second section can also transmissive portion blue light reflecting part blue light, wherein this transmission and reflection this two bundle blue light can To be modulated by dmd 611 and dmd 613 respectively it is also possible to only modulate wherein a branch of in this two bundle.

Example IV

Refer to Fig. 7, Fig. 7 is the schematic diagram of another embodiment of the light-source system of the present invention.

In the present embodiment, light-source system 700 include light-emitting device 1, beam splitting system 2, the first spatial light modulator 711 with Second space photomodulator 713.Light-emitting device 1 includes excitation source 701, wavelength conversion layer 703b and first driving means 705. Beam splitting system 2 includes the first light-dividing device 703a and light directing arrangement 3.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 6:

In the present embodiment, wavelength conversion layer 703b and the first light-dividing device 703a is fixedly connected, and is co-located on colour wheel On 703.As shown in figure 8, Fig. 8 is the front view of an embodiment of colour wheel 703 in Fig. 7.It is provided with two with one heart on colour wheel 703 Arrange and mutually nested circle ring area 703a and 703b, wherein annulus 703a are light splitting district, i.e. the first light-dividing device；Annulus 703b is wavelength-converting region, i.e. wavelength conversion layer.Light splitting district 703a includes the first section s1, for transmission green glow to the first light Passage outgoing, and reflect HONGGUANG to the second optical channel outgoing；Light splitting district 703a also includes the second section s2, for transmission blue light extremely First optical channel outgoing.Wavelength-converting region 703b includes the first subregion w1, is provided with yellow wavelengths transition material, for producing Huang Color Stimulated Light, this subregion is arranged in 180 degree relative to the center of this ring-type with the first section s1 in light splitting district 703a；Also include second Subregion w2, is provided with transparent area, and for transmission blue light, this subregion is with the second section s2 in light splitting district 703a relative to this ring-type Center is in that 180 degree is arranged.First driving means 705 are used for driving colour wheel 703 to rotate so that the first subregion w1 and the second subregion w2 Sequentially it is located on the emitting light path of light-emitting device 1.

Light directing arrangement 3 is used for the sequential light of the first subregion w1 on wavelength conversion layer 703b and the second subregion w2 outgoing It is separately directed on the first section s1 and the second section s2 on the first light-dividing device 703a.Specific explanations are as follows.

In the present embodiment, light directing arrangement 3 includes lens 707, reflecting mirror 709 and 715.One rotating in colour wheel 703 In individual cycle t, within the front t1 time, the exciting light 71 that excitation source 701 produces incides on the 703b of wavelength-converting region first Subregion w1 outgoing gold-tinted, emergent light 73 is from the side outgoing of wavelength-converting region 703b dorsad exciting light, and collects through lens 707 Reflected by reflecting mirror 709 and 715 and with 45 degree of first section s1 being incident in light splitting district 703a successively afterwards, green in gold-tinted Light composition and red color light component are respectively through the first section s1 transmission and reflection and respectively along the first optical channel outgoing to dmd 711 and edge Second optical channel outgoing is to dmd713.

Afterwards in the t2 time, exciting light 71 incides the second subregion w2 outgoing blue light, guides through light directing arrangement 3 with 45 degree Angle is incident on the second section s2, is incident to dmd 711 from the second optical channel after transmission.Exciting light 71 is in light splitting district 703a The line of the hot spot a the being formed and hot spot b being formed on the 703b of wavelength-converting region is through ring heart.Certainly, in practice, go out The angle of incidence penetrating light 73 entrance light splitting district 703a may not be 45 degree but other angles more than 0, and this can be according to actual need Design.

So, compare the light-source system shown in Fig. 6, wavelength conversion layer and the first light-dividing device can be with synchronous axial system, and this two The synchronicity of person more preferably, and does not need control device to control it synchronous, reduces cost and light source volume.

Embodiment five

Refer to Fig. 9, Fig. 9 is the front view of another embodiment of the first light-dividing device 609 in Fig. 6.With shown in Fig. 6 Unlike light-source system, the first light-dividing device 609 in the present embodiment includes three sections.It is red that first section r1 is used for transmission Light is to the first optical channel outgoing, and reflects green glow to the second optical channel outgoing.Second section r2 is used for transmission green glow to the first light Passage outgoing, and reflect HONGGUANG to the second optical channel outgoing.3rd section is used for transmissive portion blue light to the first optical channel outgoing, And reflecting part blue light is to the second optical channel outgoing.

Accordingly, first control device is used for controlling the first light-dividing device 609 so that the first section r1 and the second section R2 is located on the emitting light path of the first light, on the emitting light path positioned at the second light of the 3rd section r3.Specifically, yellow in outgoing In the t of light, in forward part time t1, the first section r1 is located on the emitting light path of gold-tinted, the second section r2 in rear part-time t2 On the emitting light path of gold-tinted, in outgoing blue light, the 3rd section r3 is located on the emitting light path of blue light.

In the present embodiment, rotate in wavelength conversion layer 603 and produce y (yellow, yellow), b (blue, blue) sequence light In a cycle, dmd 611 is sequentially received g (green, green), r (red, red), b sequence light, dmd 613 be sequentially received r, G, b sequence light.Therefore, compare various embodiments above, in the present embodiment, two dmd can be respectively received three primary colours sequence light, And then each dmd can each one image of automodulation, and at any period, two dmd, all in working condition, compare above Embodiment can more fully utilize dmd.

It is easily understood that wavelength conversion layer can also be fixedly connected with the first light-dividing device in the present embodiment.Relatively The first section s1 in light splitting district on colour wheel 703 in light-source system shown in Ying Di, Fig. 7 need to be divided into the first sub-district and second Sub-district, the wherein first sub-district is used for transmission HONGGUANG to the first optical channel outgoing to dmd 711, and reflects green glow to the second optical channel Outgoing is to dmd 713；Second sub-district is used for transmission green glow to the first optical channel outgoing to dmd 713, and reflects HONGGUANG to second Optical channel outgoing is to dmd 711.

Embodiment six

Light-source system shown in Fig. 7 is the knot that wavelength conversion layer is fixedly connected by one of which with the first light-dividing device Structure, also has other light channel structures many in practice.Refer to Figure 10, Figure 10 is another of the light-source system of the present invention The schematic diagram of embodiment.In the present embodiment, light-source system 1000 includes light-emitting device 1, beam splitting system 2, the first spatial light tune Device 1011 processed and second space photomodulator 1013.Light-emitting device 1 includes excitation source 1001, wavelength conversion layer 1003b and One driving means 1005.Beam splitting system 2 includes the first light-dividing device 1003a and light directing arrangement 3.Wavelength conversion layer 1003b and First light-dividing device 1003a is fixedly connected, and is co-located on colour wheel 1003.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 7:

Wavelength-converting region 1003b is set to reflective, the i.e. light path of the incident illumination of wavelength-converting region 1003b and emergent light Light path be located at its same side.And the first section s1 on the 1003b of wavelength-converting region and the first subregion w1 in light splitting district 1003a Arrange in 0 degree, the second subregion w2 in the second section s2 and light splitting district 1003a is in 0 degree and arranges, i.e. light splitting region and corresponding Wavelength conversion region be disposed adjacent.

Light directing arrangement 3 includes reflecting mirror 1007 with through hole, collecting lens 1009 and 1015.

In the present embodiment, excitation source 1001 is LASER Light Source, for producing blue laser 101.Reflecting mirror 1007 sets Put on the emitting light path of blue laser 101.Because the etendue of laser is smaller, and the etendue of Stimulated Light is relatively Greatly so that blue laser 101 passes through from this through hole and enters into the 1003b of wavelength-converting region after collecting lens 1009, and ripple The sequence light of long switch region 1003b outgoing major part after collecting lens 1009 collection is reflexed to light splitting district by reflecting mirror 1007 1003a.The hot spot being formed wherein in light splitting district 1003a is located on colour wheel 1003 with the hot spot of formation on the 1003b of wavelength-converting region Same radius on.Compare the light-source system shown in Fig. 7, the light path of the light-source system in the present embodiment is compacter.

Embodiment seven

Refer to Figure 11, Figure 11 is the light-source structure that wavelength conversion layer is fixedly connected by another kind with the first light-dividing device Schematic diagram.In the present embodiment, light-source system 1100 include light-emitting device, beam splitting system 2, the first spatial light modulator 1111 with Second space photomodulator 1113.Light-emitting device includes excitation source 1101, wavelength conversion layer 1103b and first driving means 1105.Beam splitting system 2 includes the first light-dividing device 1103a and light directing arrangement 3.Wavelength conversion layer 1103b and the first light splitting dress Put 1103a to be fixedly connected, be co-located on colour wheel 1003.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 10:

Wavelength-converting region 1103a is not mutually nested two circle ring area with light splitting district 1103b.In colour wheel 1103 Heart district domain is provided with a round platform 1103c, and wavelength conversion layer area 1103b is arranged on the side of this round platform 1103c, and light splitting district 1103a is arranged on a circle ring area of colour wheel 1103.Blue laser 111 sequentially passes through through hole and the collection of reflecting mirror 1107 After lens 1109, incide on the one of section on the 1103b of wavelength-converting region.And the sequence of wavelength-converting region 1103b outgoing Row light 113 major part after collecting lens 1109 collection is reflexed in light splitting district 1103a and wavelength-converting region by reflecting mirror 1107 The corresponding subregion of section that the upper hot spot of 1103b is located.

Compare the light-source system shown in Figure 10, because wavelength-converting region 1103b and light splitting district 1103a are separated by the present embodiment Farther out, reflected mirror 1107 reflect front and reflection after sequence light 113 between angle larger, be easier to separate light path.

In the embodiment above, the second subregion on wavelength conversion layer can also be provided with second wave length transition material, uses In absorbing exciting light outgoing second light.For concrete example, excitation source is used for producing uv light.First point of wavelength conversion layer Yellow fluorescent powder is provided with area, for absorbing uv light and producing gold-tinted；It is provided with blue colour fluorescent powder, for inhaling on second subregion Receive uv light and produce blue light, this blue light is the second light.

Embodiment eight

The schematic diagram of the light-source system in the schematic diagram of the light-source system of the present embodiment and above example is essentially the same, no With beam splitting system also the second light is divided into respectively along the of the first optical channel and the second optical channel outgoing in the present embodiment Three range of wavelength light and the 4th range of wavelength light, then the first spatial light modulator is for the first light along the first optical channel outgoing The first range of wavelength light and the 3rd range of wavelength light of the second light be modulated, and second space photomodulator is used for along the Second range of wavelength light of the first light of two optical channel outgoing is modulated, or is additionally operable to along the of the second optical channel outgoing 4th range of wavelength light of two light is modulated.

With Fig. 5 for example, excitation source 501 is used for producing uv light.It is provided with first subregion of wavelength conversion layer 503 Yellow fluorescent powder, for absorbing uv light and producing gold-tinted；It is provided with blue colour fluorescent powder, for absorbing uv light and producing on second subregion Raw blue light, this blue light is the second light.Because the spectrum of the blue light of blue colour fluorescent powder generation is wider, cover the part of green spectrum Scope.The second light that optical filter 509 in beam splitting system is simultaneously set to produce the second subregion is that blue light light splitting becomes the 3rd model Enclose wavelength light and the 4th range of wavelength light, i.e. the second blue light and the second green glow.So, the second blue light of generation and the second green glow Spectrum is narrower, and excitation is higher.

Accordingly, when the blue Stimulated Light light splitting producing the second subregion becomes the second blue light and the second green glow, in Fig. 2 In the beam splitting system of shown light-source system, the coated surface 209a in the second prism 209 can be simultaneously set to reflection blue and be subject to Blue light ingredient in laser transmission green color components, or transmission blue light ingredient reflect green color components.Light source shown in Fig. 5 In the beam splitting system of system, optical filter 509 can be set to the second blue light in reflection blue Stimulated Light simultaneously transmission second Green glow, or transmission second blue light reflect the second green glow.In above description, for being to the first light and the second smooth light splitting Same light-dividing device in beam splitting system.

In practice, can also respectively the first light and the second light be divided with two light-dividing devices respectively in beam splitting system Light.As shown in figure 12, Figure 12 is the schematic diagram of another embodiment of the light-source system of the present invention.In the present embodiment, light source system System 1200 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 1211 and second space photomodulator 1213.Luminous Device 1 includes excitation source 1201, wavelength conversion layer 1203 and first driving means 1205.

Beam splitting system 2 includes optical filter 1221,1209 and 1207, also includes reflecting mirror 1219.Optical filter 1221 is located to be sent out In the light path of electro-optical device 1 outgoing sequential light, for the second blue light 65b in reflection blue Stimulated Light and in transmitting blue Stimulated Light The second green glow 65a and yellow Stimulated Light 63.

Optical filter 1209 is located on the emitting light path of optical filter 1221 transmitted light beam, for the in transmitting blue Stimulated Light The first green glow 63a in two green glow 65a and yellow Stimulated Light 63 simultaneously reflects HONGGUANG 63b in yellow Stimulated Light 63.Therefore, warp Second green glow 65a of optical filter 1209 transmission and the first green glow 63a is along the first optical channel outgoing to dmd 1211.Filtered HONGGUANG 63b of 1209 reflections reflects tailing edge the second optical channel outgoing for filtered 1207 again to dmd1213, and filtered 1221 Second blue light 65b of reflection is respectively through reflecting mirror 1219 reflection with optical filter 1207 transmission tailing edge the second optical channel outgoing extremely dmd 1213.

When the second blue light 65b obtaining after blue light 65 light splitting and the second green glow 65a is used to modulation, due to two dmd Color for modulation increases so that the colour gamut that can modulate of two dmd is bigger.Accordingly, wavelength conversion layer 1203 He Dmd1211,1213 working timing figure as shown in figure 13.Figure 13 a is the sequential of wavelength conversion layer 1203 outgoing blue light and gold-tinted Figure.Within the time in cycle t that wavelength conversion layer 1203 rotates, in front 0.25t, wavelength conversion layer 1203 outgoing blue light, Afterwards in 0.75t, wavelength conversion layer 1203 outgoing gold-tinted.As shown in Figure 13 b and Figure 13 c, Figure 13 b and Figure 13 c are respectively dmd1211 With the modulation time diagram to different color light for the dmd1213.Accordingly, in front 0.25t, dmd1211 is used for modulation the second green glow, dmd 1213 are used for modulation the second blue light.In 0.75t, dmd 1211 is used for modulation the first green glow afterwards, and dmd 1213 is used for modulating HONGGUANG.

It is easily understood that the second green glow can also be not used in modulation, as long as the dmd 1211 when it enters dmd 1211 Do not work, you can not modulate this partly light.

All the difference using optical wavelength in above example, using optical filter or filter coating light beam is carried out transmission and Reflect and to carry out light splitting or closing light.And the light in some light path is transmitted on a light splitting optical filter or is reflected, Can be arbitrarily devised.Therefore, in all embodiments of the invention, in each light path, different wavelength range light passes through optical filter Or the specific optical texture of filter coating, it is provided to conveniently illustrate and row illustrated example, be not intended to limit using other utilizations Light splitting optical filter or filter coating carry out light path merging or the optical texture of light beam light splitting.

In the present embodiment, wavelength conversion layer 1203 can also arrange multiple subregions, wherein be provided with different subregions Different wave length transition material or transparent area.And the light beam of outgoing is split into two kinds of different wave length models at least one subregion The light enclosing is so that this two kinds of different wavelength range light respectively enter in two spaces photomodulator and are modulated.

In the present embodiment, the first subregion and the second subregion can also arrange the wavelength convert material producing other color of light Material, does not limit to above-mentioned yellow fluorescent powder and blue colour fluorescent powder.Material for transformation of wave length is also also possible to be quantum dot, fluorescent dye Etc. the material with wavelength conversion capability however it is not limited to fluorescent material.

Embodiment nine

Refer to Figure 14, Figure 14 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.With Unlike above example, in above example, light-emitting device 1 produces sequential light by colour wheel, and luminous in the present embodiment Device 1 reflects, by the reflecting mirror rotating, the different colours light outgoing that LED lamp disk sends successively and produces sequential light, compares reality Apply example one, in the present embodiment, cost can be controlled using reflecting mirror.

Specifically, light-emitting device 1 includes illuminating source group 1401, the first reflection unit 1405, the second reflection unit 1403 and the second driving means (not shown).

Illuminating source group 1401 includes the first luminescent device (in the present embodiment for yellow fluorescent powder led 1401a) and Two luminescent devices (in the present embodiment for blue light led 1401b), wherein fluorescent material led refers to for fluorescent material to be coated in led chip Surface, come excitated fluorescent powder and send fluorescence using the light that led sends.Common yellow fluorescent powder led refers to yellow fluorescence Powder is coated on blue light led chip surface, and the blue light launched by blue light led excites generation sodium yellow.Gold-tinted led 1401a Annularly it is distributed with blue light led 1401b, and gold-tinted led 1401a is all parallel with the direction of blue light led 1401b emergent light Central shaft in the center of circle crossing this ring-type.

Second reflection unit, in the present embodiment for a rotation mirror 1403, it includes reflecting surface 1403a, is arranged at luminous The side of the emergent light of light sources 1401, and be located between the first luminescent device 1401a and the second luminescent device 1401b.

First reflection unit 1405 includes two reflecting elements, is reflecting mirror in the present embodiment, is located at first respectively On the emitting light path of luminescent device 1401a and the second luminescent device 1401b, for the emergent light of different luminescent devices is reflexed to Second reflection unit 1403.

Second driving means (not shown) drives the second reflection unit 1403 to move so that reflecting surface 1403a is sequentially placed into On the emitting light path of two reflecting elements of the first reflection unit 1405, the light that first, second luminescent device is sent is successively Reflection outgoing.

In practice, illuminating source group 1401 can also include multiple light-emitting element arrays, in the present embodiment for Led array.Accordingly, reflection unit group 1405 includes multiple reflecting mirrors, is respectively placed in multiple luminescent devices in light source 1401 On the emitting light path of array.

As shown in figure 15, Figure 15 is the structural representation of the illuminating source group 1401 in the present embodiment.Illuminating source group Each led in 1401 is arranged on to rotate on the disk as the center of circle for the mirror 1403, and circumferentially arranges around rotating mirror 1403, and with It is in radially array distribution centered on rotating mirror 1403.In array distribution radially, it is to send same color in led array The led of light, in circumferentially arranging, yellow fluorescent powder led 1401a and blue light led 14101b is alternately distributed.

Embodiment ten

Refer to Figure 16, Figure 16 is the schematic diagram of the another embodiment of the light-source system of the present invention.Light-source system 1600 wraps Include light-emitting device 1, beam splitting system 2, the first spatial light modulator 1611 and second space photomodulator 1613.

Light-emitting device 1 includes the first luminescent device, the second luminescent device and first control device (not shown), and wherein first Luminescent device is used for producing the first light, and the second luminescent device is used for producing the second light；First control device is used at least part of First luminescent device and the second luminescent device are alternately lighted by the period, with the first light of outgoing sequential and the second light.

Specifically, the first luminescent device is gold-tinted led 11a, and the second luminescent device is blue light led 11b, is respectively used to Produce gold-tinted and blue light.First control device is used for controlling the open and close of the luminescent device of different colours respectively, makes blue light Led11b and gold-tinted led11a alternately lights, to produce gold-tinted and the blue light of sequential.

In the present embodiment, gold-tinted led11a and blue light led11b can be controlled simultaneously in a certain period first control device Light.Green glow due to obtaining after blue light and gold-tinted light splitting is all modulated in dmd 1611, then in gold-tinted led11a and In this time period that blue light led11b lights simultaneously, it is that cyan light is adjusted that dmd1611 is used for the closing light to blue light and green glow System, does not then affect for dmd 1613.In this time period, because the mixing of two kinds of light is so that dmd 1611 can adjust System how a kind of color so that the colour gamut that can modulate of this dmd 1611 is bigger.

As illustrated in fig 17 a, Figure 17 a is the color sequential chart of light-source system 1600 emergent light.In a cycle t, in t1 In time, light blue light led, then light-emitting device 1 outgoing blue light；Within the t2 time, light gold-tinted led, then light-emitting device 1 outgoing Gold-tinted；Within the t3 time, light blue light led and gold-tinted led, then the closing light of this two kinds of light of light-emitting device 1 outgoing, that is, in vain simultaneously Light.As shown in Figure 17 b and Figure 17 c, Figure 17 b and Figure 17 c is respectively the modulation time to different color light for dmd1611 and dmd1613 Figure.Accordingly, in the t1 time, dmd 1611 is used for modulating blue light, and dmd1613 does not work；In the t2 time, dmd1611 is used for adjusting Green glow processed, dmd1613 is used for modulating HONGGUANG；In the t3 time, dmd1611 is used for modulating green light, and dmd1613 is used for modulating HONGGUANG.

It can however not make this two kinds of color of light light always simultaneously, due to only having two dmd in this light-source system, wherein One dmd is used for modulating blue light and green glow respectively in the different periods.If gold-tinted led11a and blue light led11b is always maintained at Light simultaneously, then lead to not have blue light and the monochrome light image of green glow both, and the image of only cyan light.

If it is easily understood that the optical filter 1609 in beam splitting system 2 is used for transmission HONGGUANG and reflects green glow, blue light All it is modulated in dmd 1611 with the HONGGUANG obtaining after gold-tinted light splitting, green glow is modulated in dmd 1613.Then in Huang In this time period that light led11a and blue light led11b lights simultaneously, this dmd 1611 be used for the closing light of blue light and HONGGUANG be Purple light is modulated, and does not then affect for dmd 1613.

Compare above example, the present embodiment can light the luminescent device of different colours so that being used for the face of modulation simultaneously Coloured light is more, and then the colour gamut that can modulate is bigger.

Embodiment 11

Refer to Figure 18, Figure 18 is the schematic diagram of the another embodiment of the light-source system of the present invention.In the present embodiment, light source System 1800 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 1811 and second space photomodulator 1813.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 16:

Beam splitting system 2 includes filtering apparatus 1805, the second driving means 1806 and for driving filtering apparatus motion One control device (not shown).First section, the second section and the 3rd section, the wherein first section are included on filtering apparatus 1805 For transmission first light the first range of wavelength light to the first optical channel outgoing, and reflect the second range of wavelength light to second light lead to Road outgoing；Second section is used for the first range of wavelength light of reflection the first light to the second optical channel outgoing, and transmission second scope Wavelength light is to the first optical channel outgoing；3rd section is used for transmissive portion second light to the first optical channel outgoing, and reflecting part Second light is to the second optical channel outgoing.First control device is used for controlling the second driving means 1806, so that the first section is extremely On the emitting light path being at least partly sequentially located at the first light of small part and the second section, the 3rd section be at least partially disposed at On the emitting light path of two light.

For concrete example, as shown in figure 19, Figure 19 is the front view of the filtering apparatus in the light-source system shown in Figure 18 An embodiment.Filtering apparatus 1805 are in the form of annular discs, and each section thereon is circumferentially distributed on this disk.This optical filtering fills The the first section 1805a putting on 1805 is used for transmissive portion blue light reflecting part blue light, and it is green that the second section 1805b is used for transmission Light simultaneously reflects HONGGUANG, and the 3rd section 1805c is used for reflecting green glow transmission HONGGUANG.Second driving means 1806 are motor, are used for Drive filtering apparatus 1805 periodic rotary, so that each section is sequentially located on the emitting light path of light-emitting device 1.

As shown in figure 20, Figure 20 is the light-source system of two light sources and two dmd of the light-source system shown in Figure 18 Modulation timing figure.In a modulation period t, within the front t1 time, the first section 1805a of filtering apparatus 1805 is located at sequential On the emitting light path of light, then blue light source 1801 is lighted, and yellow light sources 1802 do not work, then two dmd are used for modulating blue light.? In the ensuing t2 time, the second section 1805b of filtering apparatus 1805 is located on the emitting light path of sequential light, yellow light sources 1802 light, and blue light source 1801 does not work, then dmd1811 is used for modulating green glow, and dmd1813 is used for modulating HONGGUANG.Under connecing In the t3 time come, the 3rd section 1805c of filtering apparatus 1805 is located on the emitting light path of sequential light, 1802 points of yellow light sources Bright, blue light source 1801 does not work, then dmd1811 is used for modulating HONGGUANG, and dmd1813 is used for modulating green glow.As such, it is possible to make The three primary colours light of two dmd difference modulation timings.

Embodiment 12

Refer to Figure 21, Figure 21 is another enforcement of the front view of the filtering apparatus in the light-source system shown in Figure 18 Example.

In the present embodiment, filtering apparatus 1805 also include the 4th section, for reflecting blue light transmission gold-tinted, and From unlike the light-source system shown in Figure 18, the first section 1805a is used for transmission blue light and reflects gold-tinted；When the first section When 1805a and the 4th section 1805d is located on the emitting light path of sequential light, blue light source 1801 and the same time point of yellow light sources 1802 Bright.Accordingly, in a modulation period t, when the first section of filtering apparatus 1805, the second section, the 3rd section and When four sections are sequentially located at the emitting light path of sequential light, dmd 1811 is sequentially modulated blue and green light, HONGGUANG and gold-tinted, dmd 1813 are sequentially modulated gold-tinted, HONGGUANG, green glow and blue light.In the present embodiment, because the color of modulation adds gold-tinted so that light The brightness of origin system improves.

In light-source system shown in Figure 18, corresponded on filtering apparatus using a blue light source and yellow light sources Different light splitting district sequential are lighted respectively two dmd and are provided at least three sequential lights, the light quilt that wherein this blue light source produces Light splitting becomes two bundle blue lights to this two dmd.It is also possible to two bundle blue lights will be provided to divide using two blue light sources in practice Yong Yu not two dmd modulation.It is described as follows.

Embodiment 13

Refer to Figure 22, Figure 22 is the schematic diagram of the another embodiment of the light-source system of the present invention.In the present embodiment, light source System 2200 includes light-emitting device, beam splitting system, the first spatial light modulator 2211 and second space photomodulator 2213.Luminous Device includes the first luminescent device 2201a, the second luminescent device 2202, the 3rd luminescent device 2201b and first control device (figure Do not show).Beam splitting system includes filtering apparatus 2205, the second driving means 2206, optical filter 2203 and 2204.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 18:

Light-emitting device also includes the 3rd luminescent device, produces the 4th light at least part of period in outgoing second light. In the present embodiment, the 3rd luminescent device is blue light source 2201b.Filtering apparatus 2205 in beam splitting system include Liang Ge area Section, i.e. the second section on filtering apparatus 1805 in light-source system shown in Figure 18 and the 3rd section.As shown in figure 23, Figure 23 It is the front view of filtering apparatus 2205 in the light-source system shown in Figure 22.First section 2205a is included on filtering apparatus 2205 (i.e. The second section on filtering apparatus 1805), for transmission green glow and reflect HONGGUANG；(filter dress also to include the second section 2205b Put the 3rd section on 1805), for transmission HONGGUANG and reflect green glow.

The gold-tinted (i.e. the first light) that yellow light sources 2202 send incides on filtering apparatus 2205 at a certain angle, filtered Filtered 2204 transmission tailing edge the first optical channel outgoing of light beam of device 2205 reflection are to dmd 2211；Filtered device 2205 Filtered 2203 transmission tailing edge the second optical channel outgoing of the light beam of transmission are to dmd2213.The light beam that blue light source 2201a sends To dmd 2211 after (i.e. the second light) filtered 2204 reflection tailing edge the first optical channel outgoing.Blue light source 2201b sends Light beam (i.e. the 4th light) filtered 2203 reflection tailing edge the second optical channel outgoing is to dmd 2213.

In a modulation period t, within the front t1 time, first control device closes yellow light sources 2202, and same time point Light blue radiant 2201a and 2201b, dmd2211 and 2213 are used to modulate blue light.Within the rear t2 time, first control device Light yellow light sources 2202 and close blue light source 2201a and 2201b, the first section 2205a and the second section 2205b are at least When partial sector is sequentially located on the emitting light path of gold-tinted.Dmd 2211 is used for modulation along the HONGGUANG of the first optical channel successively outgoing And green glow, dmd 2213 is for modulating green glow and the HONGGUANG along the second optical channel successively outgoing.

In the present embodiment, the light intensity of the blue light of modulation in two dmd can be controlled respectively, to better adapt to reality Need.And, the time span of two blue light outgoing can also be inconsistent, one of blue light source can be in another blue light Light in the part-time section of light source igniting, the time length specifically lighted can need the amount of blue light according to corresponding dmd To determine.As a same reason, for adjusting the amount of the green glow being used for modulation and HONGGUANG, the first section 2205a can correspondingly be controlled The lighting time of gold-tinted when being located on the emitting light path of gold-tinted (i.e. the first light) respectively with the second section 2205b.Easy to understand That one of blue light source can also be substituted for the light-emitting component of other colors, such as cyan light emitting elements, accordingly its In dmd be used for green light, HONGGUANG and the green glow of modulation timing.

It is understood that the optical filter 2203 and 2204 in beam splitting system in the present embodiment is not required, Ke Yitong Cross the light channel structure changing light-source system dispensing this two optical filters.For example that each section on filtering apparatus 2205 is same When be also configured to transmission second light and the 4th light (being blue light in the present embodiment), and light source 2201a and 2201b is located at respectively The both sides of filtering apparatus 2205 are so that be directly transmitted to dmd after the filtered device of light 2205 transmission of light source 2201a outgoing 2211, it is directly transmitted to dmd 2213 after the filtered device of light 2205 transmission of light source 2201b outgoing.

Embodiment 14

Refer to Figure 24, Figure 24 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system 2400 includes light-emitting device, beam splitting system, the first spatial light modulator 2411 and second space light tune Device 2413 processed.

Light-emitting device is used for sequentially outgoing first light, the second light and the 3rd light.For concrete example, light-emitting device includes Huang Radiant 2402a, blue light source 2401 and yellow light sources 2402b, are respectively used to produce gold-tinted 22a, blue light 11 and gold-tinted 22b, I.e. the first light, the second light and the 3rd light；Also include first control device 2403, for controlling this three light sources so that luminous fill Put sequentially outgoing gold-tinted 22a, blue light 11 and gold-tinted 22b.

The second light that beam splitting system is used for selfluminous device in future is divided into along the first optical channel and the second optical channel outgoing First sub-light and the second sub-light, the 3rd light being additionally operable to selfluminous device in future is divided into going out along the first optical channel and the second optical channel The 5th range of wavelength light penetrated and the 6th range of wavelength light.For concrete example, beam splitting system includes optical filter 2404 and 2405. The optical filtering curve of optical filter 2405 is set to the green color components of transmission gold-tinted, i.e. the second range of wavelength light of the first light and the 3rd light The 5th range of wavelength light, and reflect red color light component, i.e. the first range of wavelength light of the first light and the 6th scope ripple of the 3rd light Long light；Also reflecting part blue light transmissive portion blue light, i.e. the first sub-light and the second sub-light.Optical filter 2404 is used for transmission blue light And reflect gold-tinted.The light of blue light source 2401 and gold-tinted 2402a generation is incident from the both sides of optical filter 2404 respectively, respectively through filter Incident to the same side of optical filter 2405 from same optical channel after mating plate 2404 transmission and reflection.Yellow light sources 2402b produces Light is incident from the opposite side of optical filter 2405.The light of filtered 2405 transmissions is along the first optical channel outgoing to dmd 2411, warp The light of optical filter 2405 reflection is along the second optical channel outgoing to dmd 2413.

First spatial light modulator (i.e. dmd 2411) is used for beam splitting system along the first of the sequentially outgoing of the first optical channel Range of wavelength light, the first sub-light and the 5th range of wavelength light are modulated.Second space photomodulator (i.e. dmd 2413) is used for Described beam splitting system is entered along the second range of wavelength light of the second optical channel sequentially outgoing, the second sub-light and the 6th range of wavelength light Row modulation.

As shown in figure 25, Figure 25 is the light-source system of three light sources and two dmd of the light-source system shown in Figure 24 Modulation timing figure.In a modulation period t, within the front t1 time, blue light source 2401 is lighted, two yellow light sources not works Make, then two dmd are used to modulate blue light.Within the ensuing t2 time, yellow light sources 2402b lights, other two light source Do not work, then dmd2411 is used for modulating green glow, dmd2413 is used for modulating HONGGUANG.Within the ensuing t3 time, yellow light sources 2402a lights, and other two light source does not work, then dmd2411 is used for modulating HONGGUANG, and dmd2413 is used for modulating green glow.So, Just so that the three primary colours light of two dmd modulation timings respectively.

In the present embodiment it is also possible in a modulation period t joining day section t4, within this time, three light sources with When light, then two dmd are used for modulating the closing light of blue light and gold-tinted, i.e. white light.As such, it is possible to improve the brightness of light-source system. In the present embodiment, the ratio of t1, t2, t3 and t4 can need to be adjusted according to the actual ratio of different colours.

Compare above example, can be by controlling the brightness of two yellow light sources respectively come respectively to two in the present embodiment The HONGGUANG that dmd receives and the brightness of green glow are adjusted, and decrease to the second driving means that filtering apparatus drive Use；Simultaneously as light source light the rotation synchronised being not required to filtering apparatus, light in the sequential controlling different light sources It is more prone to, also convenient to the amount of different colours light modulation in adjustment dmd.

It is easily understood that the one of yellow light sources in the present embodiment can also be substituted for the luminous unit of the 3rd color Part.Corresponding, the optical filtering curve for the optical filter 2405 of light splitting is also configured to a ripple of transmission the 3rd color of light simultaneously The light of long scope simultaneously reflects another wave-length coverage light of the 3rd color of light.

In the present embodiment, the colour wheel that can also be rotated by excitation in light-emitting device and produce three beams sequential Light, and light splitting can also be carried out Lai real by the filter wheel rotating with colour wheel simultaneously to this three beams sequential light in beam splitting system Existing.Above example is described to these devices, only needs simply to the light-emitting device in different embodiments and light splitting System is combined, and will not be described here.

Embodiment 15

Refer to Figure 26, Figure 26 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system 2600 includes light-emitting device, beam splitting system, the first spatial light modulator 2611 and second space light tune Device 2613 processed.Light-emitting device includes blue light source 2601a and 2601b, yellow light sources 2602a and 2602b, first control device 2603.Beam splitting system includes optical filter 2604 and 2605.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 24:

Light-emitting device in the present embodiment also includes blue light source 2601b, and blue light source 2601a is respectively two dmd Blue light is provided.

Compare the optical filter that the light beam being used in the light-source system shown in Figure 24 that two yellow light sources are produced carries out light splitting 2405, the optical filter 2605 that the light beam being used in the present embodiment that two yellow light sources are produced carries out light splitting is set to transmission green glow With blue light and reflect HONGGUANG, and filtered 2605 transmission tailing edge the second optical channel outgoing of blue light of producing of blue light 2601a are to dmd 2613.Meanwhile, optical filter 2606 is located on the emitting light path of optical filter 2605 the reflected beams, for transmission blue light and reflect other Light.The HONGGUANG of sequential of filtered 2605 reflection and green glow filtered 2606 reflection tailing edge the first optical channel outgoing are to dmd 2611, blue light source 2601b are from optical filter 2606 transmission tailing edge the first optical channel outgoing to dmd 2611.

As shown in figure 27, Figure 27 is the light-source system of four light sources and two dmd of the light-source system shown in Figure 26 Modulation timing figure.In a modulation period t, within the front t1 time, first control device controls two blue light sources to light, and two Individual yellow light sources do not work, then two dmd are used for modulating blue light.Within the ensuing t2 time, yellow light sources 2602b lights, Its excess-three light source does not work, then dmd2611 is used for modulating green glow, and dmd2613 is used for modulating HONGGUANG.In the ensuing t3 time Interior, yellow light sources 2602a lights, and its excess-three light source does not work, then dmd2611 is used for modulating HONGGUANG, and dmd2613 is used for modulating Green glow.So, just so that the three primary colours light of two dmd modulation timings respectively.

It is easily understood that one of blue light source can also only be lighted i.e. in the part-time section of time period t 1 Can, the time length wherein specifically lighted can blue light according to actual needs amount being controlled.

Preferably, it is also possible to joining day section t4 in a modulation period t, within this time, the same time point of four light sources Bright, then two dmd are used to modulate the closing light of blue light and gold-tinted, i.e. white light.As such, it is possible to improve the brightness of light source.In this reality Apply in example, the ratio of t1, t2, t3 and t4 can need to be adjusted according to the actual ratio of different colours.

Compare the light-source system shown in Figure 24, adopt two blue light sources in the present embodiment, two dmd can be controlled respectively The light intensity of the blue light of middle modulation and the length of modulation time, to better adapt to be actually needed.

In the embodiment above, the optical filtering curve of each optical filter, the sequencing contro of each light source, the modulation timing of dmd It is not limited to above citing with concrete light channel structure etc., those skilled in the art can be according to specific design of the present invention.

Embodiment 16

Refer to Figure 28, Figure 28 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system includes light-emitting device, beam splitting system, the first spatial light modulator 2811 and second space photomodulator 2813.Light-emitting device includes excitation source 2801 and 2802, wavelength conversion layer 2805, first driving means 2806 and the first control Device (not shown).Beam splitting system includes optical filter 2814 and reflecting mirror 2812.

In light-source system shown in Figure 24, light-emitting device is lighted four light sources by sequential and is produced sequential light, and this enforcement Light-emitting device in example to produce sequential light using colour wheel with reference to sequential point bright light source two ways, is described as follows.

Include on wavelength conversion layer 2,805 first subregion 2805a, the second subregion 2805b, the 3rd subregion 2805c and the 4th point Area 2805c, is respectively arranged with first, second, third and fourth functional material, be respectively used to absorb exciting light and produce first, Second, third, the 4th light.In the present embodiment, two excitation sources are uv light, and first and the 3rd is provided with Huang on subregion Optical wavelength conversion material, second and the 4th is provided with blue light wavelength transition material on subregion.First point within the same time period Area and the 3rd subregion are located on the emitting light path of exciting light that two excitation sources produce respectively, the second subregion in another time period It is located at respectively on the emitting light path of the exciting light that two excitation sources produce with the 4th subregion.

First driving means 2806 are used for driving wavelength conversion layer 2805 so that exciting light shape on wavelength conversion layer 2805 The hot spot becoming acts on this wavelength conversion layer 2805 by predefined paths.Meanwhile, first control device is used for controlling two exciting lights Source so that at least part of period when the first subregion 2805a and the 3rd subregion 2805c is located in the light paths of two bundle exciting lights hand over For lighting, when the second subregion 2805b and the 4th subregion 2805d is located in the light paths of two bundle exciting lights, at least part of period is simultaneously Light.

For example bright in detail below.As shown in figure 29, Figure 29 is the wavelength conversion layer in the light-source system shown in Figure 28 Front view an embodiment.In the present embodiment, wavelength conversion layer 2805 is in the form of annular discs, and the first subregion 2805a and Three subregion 2805c are in that 180 degree is arranged, and the second subregion 2805b and the 4th subregion 2805d is in that 180 degree is arranged.First driving means 280 is motor, for driving wavelength conversion layer periodic rotary.Two bundle exciting light each self-formings on wavelength conversion layer 2805 The line of hot spot is through the center of circle of disk so that in 180 degree, the subregion of setting excites positioned at this two respectively within the same time On the emitting light path of exciting light that light source produces.

In the present embodiment, wavelength conversion layer 2805 is set to reflective, and that is, exciting light and the light path of Stimulated Light are located at The same side of this wavelength conversion layer 2805.Can by wavelength conversion layer 2805 dorsad excitation source side place reflecting mirror or Person is coated with reflectance coating to realize, and this is known technology, will not be described here.

Two reflectors 2803 and 2804 are provided with the emitting light path of wavelength conversion layer 2805, are respectively used to collect and swash Luminous source 2801 and Stimulated Light produced by excitation source 2802 excitation wavelength conversion layer, are referred to as the first Stimulated Light and second Stimulated Light.It is each provided with a through hole, the exciting light producing for the corresponding excitation source of transmission on this two reflectors. The light path of exciting light and Stimulated Light is distinguished by this two reflectors using the difference of exciting light and the etendue of Stimulated Light Come.It is easily understood that when wavelength conversion layer is transmission-type, that is, the light path of the light path of exciting light and Stimulated Light is located at wavelength respectively The both sides of conversion layer are it may not be necessary to use reflector.But adopt reflective wavelength conversion layer and reflector in the present embodiment, The loss of light beam can be reduced, improve beam utilization.

Beam splitting system is used for the first light and the 3rd light are respectively classified into two along the first optical channel and the second optical channel outgoing Bundle different wavelength range light, and respectively along the first optical channel and second optical channel outgoing the second light and the 4th light.In the present embodiment In, reflecting mirror 2812 is located on the emitting light path of the second Stimulated Light, second being subject to of the first Stimulated Light and reflected mirror 2812 reflection Laser is incident to the both sides of optical filter 2811 respectively.Optical filter 2814 is used for reflecting green in gold-tinted (i.e. the first light and the 3rd light) Light composition transmission red color light component, are additionally operable to reflect blue light (i.e. the second light and the 4th light) along the first optical channel and the second optical channel Outgoing.Dmd 2811 is used for filtered 2814 light beam along the first optical channel outgoing is modulated.It is right that dmd 2813 is used for Filtered 2814 light beam along the second optical channel outgoing is modulated.

Preferably, the reflected cover of the first Stimulated Light 2803 sequentially enters dodging device 2807 dodging and collecting lens after collecting After 2810 again outgoing to optical filter 2814.Likewise, the reflected cover of the second Stimulated Light 2804 sequentially enters dodging device after collecting After 2808 dodging and collecting lens 2809 again outgoing to optical filter 2814.So, the first Stimulated Light and the second Stimulated Light can be improved Utilization rate, reduce light loss.

As shown in figure 30, Figure 30 is a kind of working timing figure of the light-source system shown in Figure 28.It is described as follows.In ripple In a cycle t that long conversion layer 2805 rotates, excite when the second subregion 2805b and the 4th subregion 2805d is located at two bundles respectively When in the light path of light, first control device controls two excitation sources to light, then to be simultaneously received optical filter 2814 anti-for two dmd The blue light penetrated；When the first subregion 2805a and the 3rd subregion 2508c is located in the light path of two bundle exciting lights respectively, in front t1 Interior, first control device controls excitation source 2802 to light, and excitation source 2801 is closed, then dmd2813 receives green glow, Dmd 2811 receives HONGGUANG；Within the rear t2 time, first control device controls excitation source 2801 to light, excitation source 2802 Close, then dmd2813 receives HONGGUANG, and dmd2811 receives green glow.

Preferably, when the first subregion 2805a and the second subregion 2805c is located in the light path of two bundle exciting lights respectively, the phase Between have in part-time section t3, first control device control excitation source 2801 and 2802 light simultaneously, then two dmd connect simultaneously Receive HONGGUANG and the closing light of green glow, i.e. gold-tinted.This makes the brightness of light-source system improve.

In the present embodiment, when the second subregion 2805b and the 4th subregion 2805d is located in the light path of two bundle exciting lights respectively When, the length of the working time of two bundle exciting lights can be adjusted, to adjust the amount of the blue light that two dmd are respectively received, and then Adjust the color of the image of final light-source system outgoing.As a same reason it is also possible in the first subregion 2805a and the 3rd subregion When 2805c is located in the light path of two bundle exciting lights respectively, the length of the working time of adjustment two bundle exciting light respectively, to adjust two The sequential that individual dmd is respectively received is red, the amount of green glow.

In the present embodiment, two excitation sources can also be blue light source, the second subregion 2805b and the 4th subregion Reflective areas are provided with 2805d, for reflecting blue light.When excitation source is for LASER Light Source it is preferable that the second subregion 2805b and the 4th subregion 2805d is additionally provided with scattering material, for carrying out eliminating coherence to blue light.

In the present embodiment, first, second, third and fourth light can also be different colours light, can be divided according to two dmd The light modulated is not needed to determine the spectrum of this four bundles light and to be used for the optical filtering of the first light and the optical filter of the 3rd smooth light splitting Curve.

Embodiment 17

Refer to Figure 31, Figure 31 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system includes light-emitting device, beam splitting system, the first spatial light modulator 3111 and second space photomodulator 3113.Light-emitting device includes excitation source 3101 and 3102, wavelength conversion layer 3105, first driving means 3106 and the first control Device (not shown).Beam splitting system includes optical filter 3109, the reflecting mirror 3103 and 3104 with through hole.

Include in place of the present embodiment and the difference of embodiment illustrated in fig. 28:

Reflector is placed on the emitting light path of wavelength conversion layer 2805 so that luminous fill in light-source system shown in Figure 28 Put after the reflected cover of the sequential light sending is collected and enter back into beam splitting system.In the present embodiment, not in wavelength conversion layer 3105 Place reflector on emitting light path, but directly place beam splitting system.

Green color components that optical filter 3109 in beam splitting system is used in transmission gold-tinted simultaneously reflect red color light component in gold-tinted, It is additionally operable to respectively transmitted second light and the 4th light (being blue light in the present embodiment).What the first excitation source 3101 produced excites It is incident to wavelength conversion layer 3105 after through hole and collimating lens 3108 that light sequentially passes through on reflecting mirror 3103.Wavelength conversion layer After the collimated lens of first Stimulated Light 3108 collimation of 3105 outgoing, optical filter 3109 is reflexed to by reflecting mirror 3103.Second excites The exciting light that light source 3102 produces sequentially passes through incident after through hole on reflecting mirror 3104, optical filter 3109 and collimating lens 3107 To wavelength conversion layer 3105.Optical filter is entered after the collimated lens of second Stimulated Light 3107 collimation of wavelength conversion layer 3105 outgoing 3109.

The work schedule concrete example of the light-source system shown in Figure 31 is as follows.The week rotating in wavelength conversion layer 3108 In phase t, when the second subregion 2805b and the 4th subregion 2805d is located in the light path of two bundle exciting lights respectively, first control device Two excitation sources are controlled to light, then dmd 3113 receives the blue light of optical filter 3109 transmission, and dmd 3111 receives successively Filtered 3109 transmissions and the blue light of reflecting mirror 3104 reflection；When the first subregion 2805a and the 3rd subregion 2805c is located at respectively When in the light path of two bundle exciting lights, within the front t1 time, first control device controls excitation source 3101 to light, excitation source 3102 closings, then dmd3113 receives HONGGUANG, and dmd3111 receives green glow；Within the rear t2 time, first control device controls Excitation source 3102 is lighted, and excitation source 3101 is closed, then dmd3113 receives green glow, and dmd3111 receives HONGGUANG.

For convenience of describing, the first light and the 3rd light is all adopted to be gold-tinted, the second light and the 4th light in various embodiments above It is example explanation for blue light.In practice, this four bundles light can also be other color of light, is not limited to described above 's.Corresponding, optical filter in beam splitting system or the optical filtering curve of filtering apparatus are also according to the concrete color of this four bundles light And specific design.

In various embodiments above, have in the wavelength conversion layer of different subregions and the filtering apparatus of different section, wavelength Zones of different on conversion layer or filtering apparatus may not be around a center of circle circumferentially distributed, but is set in parallel Belt-like zone or take other to be appropriately arranged with mode.Corresponding, for driving this wavelength conversion layer or filtering apparatus fortune work( Driving means can be linear translation device or take other to be appropriately arranged with mode so that light beam in this wavelength conversion layer or The hot spot being formed on person's filtering apparatus acts on this wavelength conversion layer or filter along straight line path or other predefined paths respectively Electro-optical device.

In various embodiments above, the light of two dmd outgoing can project in same viewing area, to form a width figure Picture, as shown in figure 32, Figure 32 is the structural representation of an embodiment of the light-source system of the present invention.The light of two dmd outgoing Two viewing areas can also be projected respectively, to form two width images, as shown in figure 33.Figure 33 is the light-source system of the present invention Another embodiment structural representation.

In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.

The embodiment of the present invention also provides a kind of optical projection system, and including light-source system, this light-source system can have above-mentioned each Structure in embodiment and function.This optical projection system can adopt various shadow casting techniques, such as liquid crystal display (lcd, liquid Crystal display) shadow casting technique, digital light processor (dlp, digital light processor) shadow casting technique. Additionally, above-mentioned light-emitting device can also be applied to illuminator, such as stage lighting illumination.

The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims

1. a kind of light modulation system is it is characterised in that be made up of the first spatial light modulator and second space photomodulator；

Described first spatial light modulator is used for sequential is modulated via the light of first passage；

Described second space photomodulator is used for sequential is modulated via the light of second channel；

Within a cycle, the light of described first passage at least includes the light of three kinds of different dominant wavelengths with the light of second channel；Described The light of three kinds of different dominant wavelengths includes HONGGUANG and green glow, and described HONGGUANG and green glow are formed by gold-tinted light splitting, and described gold-tinted is by Huang Color fluorescent material is stimulated and produces；Described HONGGUANG and green glow are via different passages in described first passage and second channel；

Optical projection after described first spatial light modulator and second space light modulator modulates in same viewing area, with Form piece image.

2. light modulation system according to claim 1 it is characterised in that

When described first spatial light modulator and described second space photomodulator control the modulation of light of different dominant wavelengths respectively Between length.

3. light modulation system according to claim 1 it is characterised in that

In same period, described first passage sequentially outgoing three primary colours light, described second channel sequentially outgoing three primary colours light；

The dominant wavelength of the three primary colours light of described first passage is different from the dominant wavelength of the three primary colours light of second channel, wherein, at least A kind of dominant wavelength of primary lights is different.

4. light modulation system according to claim 1 it is characterised in that

Described first spatial light modulator and the synchronous light to identical or different dominant wavelength of second space photomodulator are modulated.

5. light modulation system according to claim 1 it is characterised in that

A described cycle at least includes first time period and second time period；

In described first time period and second time period, in first passage and at least one passage of second channel, there is light；

Described first spatial light modulator and the control of second space photomodulator are modulated to the light of different dominant wavelengths simultaneously.

6. light modulation system according to claim 1 it is characterised in that

Described first spatial light modulator or second space photomodulator are used for the light of two kinds of different dominant wavelengths is adjusted simultaneously System.

7. light modulation system according to claim 1 it is characterised in that

Phase modulated in the certain time period of same period by described first spatial light modulator and second space photomodulator simultaneously Light with color.

8. light modulation system according to claim 1 it is characterised in that

Described sequential cycles include n time period, and wherein, n is natural number, n >=2；

In at least one time period of described n time period, the first spatial light modulator and the control of second space photomodulator are same When the light of identical dominant wavelength is modulated.

9. light modulation system according to any one of claim 1 to 8 it is characterised in that

Described sequential is blue light and green glow via the light of first passage；

Described sequential is HONGGUANG via the light of second channel；Described HONGGUANG is modulated within the same time period with green glow simultaneously.

10. light modulation system according to any one of claim 1 to 8 it is characterised in that

Described sequential is blue and green light and green light via the light of first passage；

Described sequential is HONGGUANG via the light of second channel；The same of green glow and green light sequentially modulated by described first spatial light modulator When, second space light modulator modulates HONGGUANG.

11. light modulation systems according to any one of claim 1 to 8 it is characterised in that

Described sequential is blue and green light and HONGGUANG via the light of first passage；

Described sequential is blue light, HONGGUANG and green glow via the light of second channel；

Described first spatial light modulator enters to the blue light of second channel to the blue light of first passage and second space photomodulator Row synchronous modulation, described first spatial light modulator is to the green glow of first passage and second space photomodulator to second channel HONGGUANG synchronizes modulation, and described first spatial light modulator is to the HONGGUANG of first passage and second space photomodulator to second The green glow of passage synchronizes modulation.

12. light modulation systems according to any one of claim 1 to 8 it is characterised in that

Described sequential is blue and green light, HONGGUANG and white light via the light of first passage；

Described sequential is blue light, HONGGUANG, green glow and white light via the light of second channel；

Described first spatial light modulator enters to the blue light of second channel to the blue light of first passage and second space photomodulator Row synchronous modulation, described first spatial light modulator is to the green glow of first passage and second space photomodulator to second channel HONGGUANG synchronizes modulation, and described first spatial light modulator is to the HONGGUANG of first passage and second space photomodulator to second The green glow of passage synchronizes modulation, and described first spatial light modulator is to the white light of first passage and second space photomodulator Modulation is synchronized to the white light of second channel.